block: pass a gendisk on bdev_check_media_change

bdev_check_media_change should only ever be called for the whole device.
Pass a gendisk to make that explicit and rename the function to
disk_check_media_change.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/disk-events.c b/block/disk-events.c
index aee25a7..8b1b632 100644 (file)
--- a/block/disk-events.c
+++ b/block/disk-events.c
@@ -263,31 +263,31 @@ static unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask)
 }
 
 /**
- * bdev_check_media_change - check if a removable media has been changed
- * @bdev: block device to check
+ * disk_check_media_change - check if a removable media has been changed
+ * @disk: gendisk to check
  *
  * Check whether a removable media has been changed, and attempt to free all
  * dentries and inodes and invalidates all block device page cache entries in
  * that case.
  *
- * Returns %true if the block device changed, or %false if not.
+ * Returns %true if the media has changed, or %false if not.
  */
-bool bdev_check_media_change(struct block_device *bdev)
+bool disk_check_media_change(struct gendisk *disk)
 {
        unsigned int events;
 
-       events = disk_clear_events(bdev->bd_disk, DISK_EVENT_MEDIA_CHANGE |
+       events = disk_clear_events(disk, DISK_EVENT_MEDIA_CHANGE |
                                   DISK_EVENT_EJECT_REQUEST);
        if (!(events & DISK_EVENT_MEDIA_CHANGE))
                return false;
 
-       if (__invalidate_device(bdev, true))
+       if (__invalidate_device(disk->part0, true))
                pr_warn("VFS: busy inodes on changed media %s\n",
-                       bdev->bd_disk->disk_name);
-       set_bit(GD_NEED_PART_SCAN, &bdev->bd_disk->state);
+                       disk->disk_name);
+       set_bit(GD_NEED_PART_SCAN, &disk->state);
        return true;
 }
-EXPORT_SYMBOL(bdev_check_media_change);
+EXPORT_SYMBOL(disk_check_media_change);
 
 /**
  * disk_force_media_change - force a media change event

diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 4c8b2ba..6de12b3 100644 (file)
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1675,7 +1675,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
        }
 
        if (mode & (FMODE_READ|FMODE_WRITE)) {
-               bdev_check_media_change(bdev);
+               disk_check_media_change(bdev->bd_disk);
                if (mode & FMODE_WRITE) {
                        int wrprot;
 

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 9deb4df..da481dd 100644 (file)
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1760,8 +1760,8 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode,
                /* invalidate the buffer track to force a reread */
                BufferDrive = -1;
                set_bit(drive, &fake_change);
-               if (bdev_check_media_change(bdev))
-                       floppy_revalidate(bdev->bd_disk);
+               if (disk_check_media_change(disk))
+                       floppy_revalidate(disk);
                return 0;
        default:
                return -EINVAL;
@@ -1938,7 +1938,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
                return 0;
 
        if (mode & (FMODE_READ|FMODE_WRITE)) {
-               if (bdev_check_media_change(bdev))
+               if (disk_check_media_change(bdev->bd_disk))
                        floppy_revalidate(bdev->bd_disk);
                if (mode & FMODE_WRITE) {
                        if (p->wpstat) {

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 28ec6b4..3accafc 100644 (file)
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3210,13 +3210,13 @@ static int floppy_raw_cmd_ioctl(int type, int drive, int cmd,
 
 #endif
 
-static int invalidate_drive(struct block_device *bdev)
+static int invalidate_drive(struct gendisk *disk)
 {
        /* invalidate the buffer track to force a reread */
-       set_bit((long)bdev->bd_disk->private_data, &fake_change);
+       set_bit((long)disk->private_data, &fake_change);
        process_fd_request();
-       if (bdev_check_media_change(bdev))
-               floppy_revalidate(bdev->bd_disk);
+       if (disk_check_media_change(disk))
+               floppy_revalidate(disk);
        return 0;
 }
 
@@ -3287,7 +3287,7 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
                    drive_state[current_drive].maxtrack ||
                    ((user_params[drive].sect ^ oldStretch) &
                     (FD_SWAPSIDES | FD_SECTBASEMASK)))
-                       invalidate_drive(bdev);
+                       invalidate_drive(bdev->bd_disk);
                else
                        process_fd_request();
        }
@@ -3464,7 +3464,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
                current_type[drive] = NULL;
                floppy_sizes[drive] = MAX_DISK_SIZE << 1;
                drive_state[drive].keep_data = 0;
-               return invalidate_drive(bdev);
+               return invalidate_drive(bdev->bd_disk);
        case FDSETPRM:
        case FDDEFPRM:
                return set_geometry(cmd, &inparam.g, drive, type, bdev);
@@ -3503,7 +3503,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
        case FDFLUSH:
                if (lock_fdc(drive))
                        return -EINTR;
-               return invalidate_drive(bdev);
+               return invalidate_drive(bdev->bd_disk);
        case FDSETEMSGTRESH:
                drive_params[drive].max_errors.reporting = (unsigned short)(param & 0x0f);
                return 0;
@@ -4054,7 +4054,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
                        drive_state[drive].last_checked = 0;
                        clear_bit(FD_OPEN_SHOULD_FAIL_BIT,
                                  &drive_state[drive].flags);
-                       if (bdev_check_media_change(bdev))
+                       if (disk_check_media_change(bdev->bd_disk))
                                floppy_revalidate(bdev->bd_disk);
                        if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags))
                                goto out;

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 42b4b68..105bc5f 100644 (file)
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -640,7 +640,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
                return 0;
 
        if (mode & (FMODE_READ|FMODE_WRITE)) {
-               if (bdev_check_media_change(bdev) && fs->disk_in)
+               if (disk_check_media_change(bdev->bd_disk) && fs->disk_in)
                        fs->ejected = 0;
                if ((mode & FMODE_WRITE) && fs->write_protected) {
                        err = -EROFS;

diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index da811a7..3d689ba 100644 (file)
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -963,7 +963,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
 
        if (err == 0 && (mode & FMODE_NDELAY) == 0
            && (mode & (FMODE_READ|FMODE_WRITE))) {
-               if (bdev_check_media_change(bdev))
+               if (disk_check_media_change(bdev->bd_disk))
                        floppy_revalidate(bdev->bd_disk);
                if (fs->ejected)
                        err = -ENXIO;

diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index a401dc4..3cb92df 100644 (file)
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -478,7 +478,7 @@ static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
 {
        int ret;
 
-       bdev_check_media_change(bdev);
+       disk_check_media_change(bdev->bd_disk);
 
        mutex_lock(&gdrom_mutex);
        ret = cdrom_open(gd.cd_info);

diff --git a/drivers/md/md.c b/drivers/md/md.c
index fabf9c5..77046c9 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7789,7 +7789,7 @@ static int md_open(struct block_device *bdev, fmode_t mode)
        atomic_inc(&mddev->openers);
        mutex_unlock(&mddev->open_mutex);
 
-       bdev_check_media_change(bdev);
+       disk_check_media_change(bdev->bd_disk);
        return 0;
 
 out_unlock:

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 1624d52..aab649d 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1280,11 +1280,10 @@ static void sd_uninit_command(struct scsi_cmnd *SCpnt)
                mempool_free(rq->special_vec.bv_page, sd_page_pool);
 }
 
-static bool sd_need_revalidate(struct block_device *bdev,
-               struct scsi_disk *sdkp)
+static bool sd_need_revalidate(struct gendisk *disk, struct scsi_disk *sdkp)
 {
        if (sdkp->device->removable || sdkp->write_prot) {
-               if (bdev_check_media_change(bdev))
+               if (disk_check_media_change(disk))
                        return true;
        }
 
@@ -1293,7 +1292,7 @@ static bool sd_need_revalidate(struct block_device *bdev,
         * nothing to do with partitions, BLKRRPART is used to force a full
         * revalidate after things like a format for historical reasons.
         */
-       return test_bit(GD_NEED_PART_SCAN, &bdev->bd_disk->state);
+       return test_bit(GD_NEED_PART_SCAN, &disk->state);
 }
 
 /**
@@ -1330,7 +1329,7 @@ static int sd_open(struct block_device *bdev, fmode_t mode)
        if (!scsi_block_when_processing_errors(sdev))
                goto error_out;
 
-       if (sd_need_revalidate(bdev, sdkp))
+       if (sd_need_revalidate(bdev->bd_disk, sdkp))
                sd_revalidate_disk(bdev->bd_disk);
 
        /*

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 6d33120..1592e6e 100644 (file)
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -494,7 +494,7 @@ static int sr_block_open(struct block_device *bdev, fmode_t mode)
                return -ENXIO;
 
        scsi_autopm_get_device(sdev);
-       if (bdev_check_media_change(bdev))
+       if (disk_check_media_change(bdev->bd_disk))
                sr_revalidate_disk(cd);
 
        mutex_lock(&cd->lock);

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f4c339d..a1688eb 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -817,7 +817,7 @@ int __register_blkdev(unsigned int major, const char *name,
        __register_blkdev(major, name, NULL)
 void unregister_blkdev(unsigned int major, const char *name);
 
-bool bdev_check_media_change(struct block_device *bdev);
+bool disk_check_media_change(struct gendisk *disk);
 int __invalidate_device(struct block_device *bdev, bool kill_dirty);
 void set_capacity(struct gendisk *disk, sector_t size);